<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="问题ID" prop="questionId">
        <el-input
          v-model="queryParams.questionId"
          placeholder="请输入问题ID"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="是否正确" prop="status">
        <el-select v-model="queryParams.status" placeholder="请选择是否正确" clearable>
          <el-option
            v-for="dict in dict.type.el_answer_status"
            :key="dict.value"
            :label="dict.label"
            :value="dict.value"
          />
        </el-select>
      </el-form-item>
      <el-form-item label="答案内容" prop="text">
        <el-input
          v-model="queryParams.text"
          placeholder="请输入答案内容"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
<!--      <el-col :span="1.5">-->
<!--        <el-button-->
<!--          type="primary"-->
<!--          plain-->
<!--          icon="el-icon-plus"-->
<!--          size="mini"-->
<!--          @click="handleAdd"-->
<!--          v-hasPermi="['exam:questionAnswer:add']"-->
<!--        >新增-->
<!--        </el-button>-->
<!--      </el-col>-->
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['exam:questionAnswer:edit']"
        >修改
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['exam:questionAnswer:remove']"
        >删除
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="warning"
          plain
          icon="el-icon-download"
          size="mini"
          @click="handleExport"
          v-hasPermi="['exam:questionAnswer:export']"
        >导出
        </el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="questionAnswerList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center"/>
      <el-table-column label="答案ID" align="center" prop="id"/>
      <el-table-column label="问题ID" align="center" prop="questionId"/>
      <el-table-column label="是否正确" align="center" prop="status">
        <template slot-scope="scope">
          <dict-tag :options="dict.type.el_answer_status" :value="scope.row.status"/>
        </template>
      </el-table-column>
      <el-table-column label="答案内容" align="center" prop="text"/>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['exam:questionAnswer:edit']"
          >修改
          </el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['exam:questionAnswer:remove']"
          >删除
          </el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination
      v-show="total>0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!--  增加和修改弹窗  -->
    <dialog-edit v-if="open" :visible.sync="open" :modalObj='modalObj' @handleClose="getList"></dialog-edit>


  </div>
</template>

<script>
  import { listQuestionAnswer, delQuestionAnswer } from '@/api/exam/questionAnswer'
  import dialogEdit from './edit'

  export default {
    name: 'QuestionAnswer',
    dicts: ['el_answer_status'],
    components: {
      dialogEdit
    },

    data() {
      return {
        modalObj: {},
        // 遮罩层
        loading: true,
        // 选中数组
        ids: [],
        // 非单个禁用
        single: true,
        // 非多个禁用
        multiple: true,
        // 显示搜索条件
        showSearch: true,
        // 总条数
        total: 0,
        // 候选答案表格数据
        questionAnswerList: [],

        // 是否显示弹出层
        open: false,
        // 查询参数
        queryParams: {
          pageNum: 1,
          pageSize: 10,
          questionId: null,
          status: null,
          text: null
        }

      }

    },
    created() {
      this.getList()
    },
    methods: {
      /** 查询候选答案列表 */
      getList() {
        this.loading = true
        listQuestionAnswer(this.queryParams).then(response => {
          this.questionAnswerList = response.rows
          this.total = response.total
          this.loading = false
        })
      },

      /** 搜索按钮操作 */
      handleQuery() {
        this.queryParams.pageNum = 1
        this.getList()
      },
      /** 重置按钮操作 */
      resetQuery() {
        this.resetForm('queryForm')
        this.handleQuery()
      },
      // 多选框选中数据
      handleSelectionChange(selection) {
        this.ids = selection.map(item => item.id)
        this.single = selection.length !== 1
        this.multiple = !selection.length
      },
      /** 新增按钮操作 */
      handleAdd() {
        this.open = true //指定弹出框显示
        this.modalObj = { title: '添加', modal: true, width: '700px', id: '' }
      },
      /** 修改按钮操作 */
      handleUpdate(row) {
        this.open = true //指定弹出框显示
        this.modalObj = { title: '修改', modal: true, width: '700px', id: row.id }
      },

      /** 删除按钮操作 */
      handleDelete(row) {
        const ids = row.id || this.ids
        this.$modal.confirm('是否确认删除候选答案编号为"' + ids + '"的数据项？').then(function() {
          return delQuestionAnswer(ids)
        }).then(() => {
          this.getList()
          this.$modal.msgSuccess('删除成功')
        }).catch(() => {
        })
      },

      /** 导出按钮操作 */
      handleExport() {
        this.download('study/exam/questionAnswer/export', {
          ...this.queryParams
        }, `questionAnswer_${new Date().getTime()}.xlsx`)
      }

    }
  }
</script>
